however waves one and two were based on original action men ( soldiers from around the world ). he dosnt seem to fit in the first waves in my opinion, and non of the original series figures had logos as such.

I'm still of the opinion that if Z Force was originally called heavy weapons then the 'Special Weapons' Force could have been the 5th good guy Force in series 2

The logo could represent an large ballistic missle that a "Special" would have been delivered on. Just a thought but the Scientist could have be part of a vehicle set so perhaps as the man launching the bucket of sunshine, no test tubes needed for that. The other force letters i think have historical bearing in terms of attachment to the Navy "Q" and "Z" was related to an infantry unit. I would have to do a wee bit more research here but I am sure that Palitoy have used real historical reference from the WW2 era.

When confronted by a difficult problem you can solve it more easily by reducing it to the question. How would the Lone Ranger handle this?